20194995860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1\times {\mathrm{1583}}^1$

素因数の和:2097

約数の個数: 96

約数和(自身を含む): 46159787520

約数和(自身を除く): 25964791660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 353, 556, 695, 706, 1390, 1412, 1583, 1765, 1807, 2780, 3166, 3530, 3614, 4589, 6332, 7060, 7228, 7915, 9035, 9178, 15830, 18070, 18356, 20579, 22945, 31660, 36140, 41158, 45890, 49067, 82316, 91780, 98134, 102895, 196268, 205790, 220037, 245335, 411580, 440074, 490670, 558799, 637871, 880148, 981340, 1100185, 1117598, 1275742, 2200370, 2235196, 2551484, 2793995, 2860481, 3189355, 4400740, 5587990, 5720962, 6378710, 7264387, 11175980, 11441924, 12757420, 14302405, 14528774, 28604810, 29057548, 36321935, 57209620, 72643870, 77673061, 145287740, 155346122, 310692244, 388365305, 776730610, 1009749793, 1553461220, 2019499586, 4038999172, 5048748965, 10097497930, 20194995860]

約数ペア:

[(1, 20194995860), (2, 10097497930), (4, 5048748965), (5, 4038999172), (10, 2019499586), (13, 1553461220), (20, 1009749793), (26, 776730610), (52, 388365305), (65, 310692244), (130, 155346122), (139, 145287740), (260, 77673061), (278, 72643870), (353, 57209620), (556, 36321935), (695, 29057548), (706, 28604810), (1390, 14528774), (1412, 14302405), (1583, 12757420), (1765, 11441924), (1807, 11175980), (2780, 7264387), (3166, 6378710), (3530, 5720962), (3614, 5587990), (4589, 4400740), (6332, 3189355), (7060, 2860481), (7228, 2793995), (7915, 2551484), (9035, 2235196), (9178, 2200370), (15830, 1275742), (18070, 1117598), (18356, 1100185), (20579, 981340), (22945, 880148), (31660, 637871), (36140, 558799), (41158, 490670), (45890, 440074), (49067, 411580), (82316, 245335), (91780, 220037), (98134, 205790), (102895, 196268)]